CVE-2024-30156

High

Description

Varnish Cache before 7.3.2 and 7.4.x before 7.4.3 (and before 6.0.13 LTS), and Varnish Enterprise 6 before 6.0.12r6, allows credits exhaustion for an HTTP/2 connection control flow window, aka a Broke Window Attack.

SeverityHigh
CVSS7.5
Exploit probability—
ProductCache
PublishedMar 24, 2024
First seenMar 24, 2024

How to fix

Update
  • Varnish Cache7.3.2, 7.4.3, 6.0.13 LTS or later
  • Varnish Enterprise 66.0.12r6 or later

Affected products

ProductAffected versionsFixed in
Varnish CacheNo range specified7.3.2, 7.4.3, 6.0.13 LTS
Varnish Enterprise 6No range specified6.0.12r6

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